13004255320 has 64 divisors (see below), whose sum is σ = 34343311680. Its totient is φ = 4338095616.

The previous prime is 13004255311. The next prime is 13004255347. The reversal of 13004255320 is 2355240031.

It is a super-2 number, since 2×13004255320² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 617259 + ... + 637978.

It is an arithmetic number, because the mean of its divisors is an integer number (536614245).

Almost surely, 2^13004255320 is an apocalyptic number.

13004255320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13004255320 is an abundant number, since it is smaller than the sum of its proper divisors (21339056360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13004255320 is a wasteful number, since it uses less digits than its factorization.

13004255320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255292 (or 1255288 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 13004255320 its reverse (2355240031), we get a palindrome (15359495351).

It can be divided in two parts, 13004 and 255320, that added together give a square (268324 = 518²).

The spelling of 13004255320 in words is "thirteen billion, four million, two hundred fifty-five thousand, three hundred twenty".